﻿19. 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Micropegmatite, 
  i8i. 
  

  

  Microperthite, 
  32, 
  35, 
  36, 
  38, 
  40, 
  41, 
  

  

  49, 
  181, 
  183, 
  184. 
  

   Miller, 
  W. 
  J., 
  dted, 
  2Sy 
  77, 
  99- 
  

   Millsite 
  lake, 
  35, 
  iii, 
  127, 
  132. 
  

   Mixed 
  rocks, 
  47. 
  

   Mohawk 
  valley. 
  Paleozoic 
  oscilla- 
  

  

  tious 
  of 
  level, 
  97. 
  

   Mohawldan 
  series, 
  79-92. 
  

   Moraines, 
  1 
  51-53- 
  

   Morley, 
  E. 
  W., 
  analyses 
  by, 
  176. 
  

   Morris 
  granite, 
  176. 
  

   Mud 
  lake 
  valley, 
  127. 
  

   Muscovite, 
  36, 
  177, 
  184. 
  

  

  Natural 
  bridge, 
  8g. 
  

  

  Old 
  planation 
  surfaces, 
  170-71. 
  

   Oligoclase, 
  32, 
  36, 
  38, 
  40, 
  41, 
  181, 
  183, 
  

  

  184. 
  

   Ontario 
  valley, 
  126. 
  

   Orleans 
  Four 
  Corners, 
  115. 
  

   Orthis 
  pervetus, 
  90. 
  

  

  tricenaria, 
  90. 
  

   Orthoceras 
  multicameratum, 
  81, 
  82. 
  

  

  recticameratum, 
  81, 
  82. 
  

   Orthoclase, 
  32, 
  34, 
  50. 
  

   Orton, 
  cited, 
  98. 
  

   Oswego 
  sandstone, 
  19, 
  123. 
  

   Outliers, 
  114. 
  

  

  Pachydictya 
  acuta, 
  91. 
  

  

  Paleozoic 
  altitude 
  and 
  climate, 
  122- 
  

  

  23- 
  

   Paleozoic 
  folding, 
  1 
  12-15. 
  

   Paleozoic 
  oscillations 
  of 
  level, 
  sum- 
  

   mary 
  of, 
  92-97- 
  

   Paleozoic 
  rocks, 
  14-22, 
  54-92; 
  dip 
  of, 
  

  

  98-99; 
  faults, 
  120; 
  joints, 
  107-8. 
  

   Pamelia 
  limestones, 
  6, 
  17-18, 
  22, 
  54, 
  

  

  68-79, 
  95, 
  97, 
  130, 
  132 
  ; 
  age 
  of, 
  78 
  ; 
  

  

  extent, 
  77-78; 
  faults, 
  ^120; 
  fold, 
  

  

  115 
  ; 
  quarries, 
  173, 
  I75- 
  

   Pegmatite, 
  36, 
  48, 
  49, 
  50. 
  

   Perch 
  lake, 
  64, 
  71, 
  132, 
  150. 
  

   Perch 
  river, 
  89, 
  I34- 
  

   Petrography 
  of 
  some 
  Precambric 
  

  

  rocks, 
  175-87. 
  

   Philomel 
  creek, 
  133. 
  

   Phlogopite, 
  29, 
  32, 
  35, 
  53- 
  

   Physiography, 
  141-50. 
  

  

  Phytopsis, 
  7S, 
  80. 
  

  

  tubulosum, 
  83. 
  

   Picton 
  granite, 
  11-13, 
  39, 
  40, 
  41, 
  48, 
  

  

  50, 
  51, 
  103, 
  119; 
  analyses, 
  176, 
  i8r- 
  

  

  82; 
  quarries, 
  174. 
  

   Pitted 
  clays, 
  158. 
  

   Plagioclase, 
  34, 
  40, 
  49, 
  183. 
  

   Plateaus, 
  129-31. 
  

   Plectambonites 
  sericeus, 
  91, 
  92. 
  

   Pleistocene, 
  23-24, 
  136-72. 
  

   Plessis, 
  127, 
  147. 
  

   Pleurotomaria 
  hunterensis, 
  6^. 
  

   Postglacial 
  folds, 
  1 
  15-18. 
  

   Potsdam 
  sandstone, 
  14-15, 
  48, 
  54, 
  60- 
  

  

  63, 
  92, 
  97, 
  98, 
  114, 
  123, 
  129, 
  159, 
  161, 
  

  

  170; 
  age 
  of, 
  66-68; 
  faults, 
  120; 
  

  

  fold, 
  115; 
  inliers 
  of 
  Precambric 
  

  

  rocks, 
  5S; 
  Precambric 
  surface 
  

  

  underneath, 
  54-60 
  ; 
  quarries, 
  173 
  ; 
  

  

  use 
  as 
  road 
  rock, 
  173 
  ; 
  used 
  for 
  

  

  building 
  and 
  flagging 
  purposes, 
  174. 
  

   Prasopora 
  simulatrix, 
  91. 
  

   Precambric 
  erosion, 
  53-54. 
  

   Precambric 
  rocks, 
  24-54; 
  faults, 
  118; 
  

  

  folding, 
  109-12; 
  joints, 
  104-6; 
  

  

  petrography 
  of, 
  175-87- 
  

   Precambric 
  surface 
  underneath 
  the 
  

  

  Potsdam, 
  54-60. 
  

   Prewisconsin 
  glaciation, 
  164-7^- 
  

   Prospect 
  Park, 
  155. 
  

   P^-rite, 
  32, 
  35, 
  44, 
  49, 
  53, 
  64, 
  I77, 
  181, 
  

  

  183, 
  184- 
  

   Pyroxene, 
  29, 
  32, 
  33, 
  34, 
  35, 
  48, 
  49, 
  

  

  50, 
  51, 
  52, 
  53, 
  119- 
  

   Pyroxenic 
  limestone, 
  29. 
  

  

  Quarry 
  industry, 
  173-75- 
  

  

  Quartz, 
  29, 
  32, 
  33, 
  34, 
  35, 
  3^, 
  38, 
  39r 
  

  

  40, 
  41, 
  48, 
  49, 
  57, 
  61, 
  64, 
  177, 
  178, 
  

  

  181, 
  182, 
  183, 
  184. 
  

   Ouartzite, 
  30, 
  31-33, 
  37, 
  43, 
  47, 
  48. 
  50, 
  

  

  51, 
  55, 
  57^ 
  59, 
  61; 
  gradation 
  of 
  

   granite 
  into, 
  47. 
  

  

  Rafinesquina 
  incrassata, 
  83. 
  

  

  minnesotensis, 
  83. 
  

   Redwood, 
  153, 
  162, 
  163, 
  177. 
  

   Redwood 
  lakes, 
  151. 
  

   Reid, 
  H. 
  F., 
  acknowledgments 
  to, 
  

  

  117; 
  cited, 
  118. 
  

  

  